Subject area	Medicine
More specific subject area	Respiratory diseases
Type of data	Tables
How data was acquired	This data was acquired from medical records of patients admitted at Arya and Razi Hospitals of Rasht that were examined from 2006 to 2015.
Data format	Raw and analyzed
Experimental factors	Patients were categorized into three groups: primary spontaneous pneumothorax, secondary spontaneous pneumothorax, and with acquired pneumothorax.
Experimental features	Data collection instrument included a researcher-designed questionnaire that consisted of the patients’ demographic data including age and gender, history of smoking and opium, underlying disease (tuberculosis, chronic obstructive pulmonary disease, cystic fibrosis, lung cancer, and asthma), clinical symptoms at admission, the utilized diagnostic method, duration of hospitalization, findings of chest CT scan, type of pneumothorax, and therapeutic techniques.
Data source location	Rasht, Guilan province, Iran
Data accessibility	Data are included in this article
Related research article	D. Gupta, A. Hansell, T. Nichols, T. Duong, J.G. Ayres, D. Strachan, Epidemiology of pneumothorax in England, Thorax. 55 (2000) 666–671 [1].